On Wed, Nov 11, 2015 at 07:50:15PM +0100, Daniel Borkmann wrote:
Well, on that note, it's not like you just change the target to bpf in your
Makefile and can compile (& load into the kernel) anything you want with it.
You do have to write small, restricted programs from scratch for a specific
use-case with the limited set of helper functions and intrinsics that are
available from the kernel. So I don't think that "Programs that used to work
will now no longer work." holds if you regard it as such.
So I don't get this argument. If everything is so targeted, then why are
the BPF instructions an ABI.
If OTOH you're expected to be able to transfer these small proglets,
then too I would expect to transfer the source of these proglets.
You cannot argue both ways.